Reaction: S-adenosyl-L-methionine + a bacteriochlorophyllide d = S-adenosyl-L-homocysteine + a bacteriochlorophyllide c
For diagram of reaction click here.
Other name(s): bchU (gene name)
Systematic name: S-adenosyl-L-methionine:bacteriochlorophyllide-d C-20 methyltransferase
Comments: The enzyme, found in green sulfur bacteria (Chlorobiaceae) and green flimentous bacteria (Chloroflexaceae), catalyses the methylation of the C-20 methine bridge position in bacteriochlorophyllide d, forming bacteriochlorophyllide c.
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, CAS registry number:
References:
1. Maresca, J.A., Gomez Maqueo Chew, A., Ponsati, M.R., Frigaard, N.U., Ormerod, J.G. and Bryant, D.A. The bchU gene of Chlorobium tepidum encodes the c-20 methyltransferase in bacteriochlorophyll c biosynthesis. J. Bacteriol. 186 (2004) 2558-2566. [PMID: 15090495]